Oil-stove burner.



W. C, LINDEMANN.

OIL STOVE BURNER.

APPLICATION FILED SEPT. 21. m4.

Patented June 26, 1917.

2 SHEETS SHEET 1.

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W. C. LINDEMANN.

OIL STOVE BURNER.

APPLICATION FILED SEPT. 21. 1914.

1,.Q3L394. Patented June 26, 1917.

2 SHEETS-SHEET 2.

TJ'NT %A.E% ATENT FFTE WALTER C. LINDEMANN, 0F MILWAUKEE, WISCONSIN, ASSIGNOR TO A. J'. LINDEMANN 8c I-IOVERSON (30., OF'MIL'WAUKEE, WISCONSIN.

OIL-STOVE BURNER.

Specification of Letters Patent.

Patented June 26, 1917.

Application filed September 21, 1914. Serial No. 862,707.

and efficient burner for oil stoves with especial reference to the wick type.

Specific objects of my invention are to provide a core head preferably of the cup type for a standard double walled open ended cylindrical wick-shell, the head being affixed in juxtaposition to the mouth of the wick-shell to form a circular air s ace of predetermined capacity, whereby uni ormity in the supply of oxygen to the burner is ob tained. The choked air regulation about the mouth of the shell also serves as a protec tion against puffy drafts or cross currents of air, whereby an even flame is maintained, it being understood that in the exemplifi cation of my invention the mouth of the wick-shell is provided with drum seating flanges, the inner one of which forms the fixed point of adjustment with relation to the core head;

To provide a core-head in the form of an inverted cup, the cylindrical sidewalls of which are concentrically spaced from the inner walls of the wick-shell to form an an-' nular air delivery throat, whereby the cool air entering the shell is deflected outwardly and caused to travel upwardly in tube-like form to act as a cooling medium for the heat ed walls of the wick-shell, such reduction in temperature being desirable to produce perfect combustion;

To provide a cup-like corethat is stamped out from a thin metallic one piece blank having longitudinally disposed outwardly folding anchoring wings upset from 1ts side walls for centering said cup and attaching the same to the inner walls of the wickshell;

To provide a lower deflecting head in connection with the cup-like core, whereby the air is spread as it enters the receiving end of the cylindrical wick-shell, causing the entire volume to travel through restricted flow channels thus formed, to serve as a cooling medium for the juxtaposed inner wall of said shell.

With the above and other objects in view, which will appear as the description proceeds, my invention resides in the novel combination, construction and combination of parts substantially as hereinafter clescribed and more particularly defined by the appended claim.

Figure 1' of the drawings represents a sectional View indicated by line 1-1 in Fig. 2, and illustrating the wick-holder element of my improved oil-stove burner surmounted by a fragment of the burner drum;

Fig. 2, a horizontal section indicated by line 22 in Fig. 1;

Fig. 3, a view similar to Fig. 1, and illustrating raising and lowering support for the drum, and

Fig. f, a fragmentary sectional view showing a modified form of shell wick core, the same being one of the elements constituting my invention.

Referring by characters to the drawings, 4 indicates the outer and 5 the inner concentric tubular walls of a wickshell, and 6 the wick which is guided between the shell walls, the said wick being fitted with a perforated binder 7 with which the wick-raising cogwheels (not shown) are engaged. The mouth of the wick-shell is provided with inner and outer flanges 5, l", respectively, being preferably similar to what is disclosed in Letters Patent No. 1,041,111, October 15, 1912, and the perforated rings 12 and 13 of the burner drum are normally seated upon the mouth flanges of the wick shell as dis closed in said Letters Patent. The cylindrical wick shell, as shown, is open at its ends and fitted into its upper end is a core-head 14;, which core-head is preferably in inverted cup-like form including downwardly extending cylindrical side walls 14. The cup is of'less'diameter than the inner diameter of the Wick-shell and is concentrically arranged with relation to said inner wall, its

head 14 being predeterminedly set'relative to i the mouth of the wick-shell or, as in this eX- emplification of my invention, the flange 5", whereby an air space is formed between the juxtaposed surfaces of greater or less area, depending upon the capacity of the burner.

The side walls 14 of the cup-like core are longitudinally cut away at intervals about its sides, the freed metal being folded outwardly to form retaining wings 15, which wings are soldered or otherwise secured to the inner walls of the wick shell, whereby the head and sidewalls of the cup-like core are centrally positioned and spaced from the juxtaposed walls of the wick shell to form a longitudinal air passage.

The side walls of the cup are of any suitable length, being shown in Figs. 1 and 3 approximately two-thirds of the length of the burner shell, while Fig. 4t illustrates a form of shell, the walls of which are quite restricted. It is preferable, however, to form the cup walls of a length slightly shorter than the length of the wick-shell, whereby a long flue space between these elements is formed to more effectually cool the burner. The upward current of air thus deflected to the walls of said wick-shell will maintain the burner at a low temperature when it is in operation, while, at the same time, the restricted air passage between the mouth of the aforesaid wick burner and head of the core will prevent flickering of the flame by puffy or disturbing air currents.-

. the inner side walls thereof.

- tion of a stem 16, which stem is reciproca- Referring especially to Fig. 3 of the drawings, the upper and lower heads 1 1', 14k, respectively, are shown as being provided with central apertures for the receptively guided in said apertures. The upper end of the stem carries a spider 17, which spider, when at rest, engages the inner flange 5 of the wick-shell being of slightly less diameter than the inner tubular member 13 of the drum. The lower end of the stem 16 is oifset to form a crank 16 that extends outwardly through a spirally disposed slot 18 that is formed in a circular apron. 19, which apron depends from the inner walls of the wick-shell. The spirally disposed apron slot 18, at its high end, is provided with a horizontally disposed crankseat 18, and the end of the stem crank 16 which projects through the slot is preferably provided with a handle, as shown, within convenient reach, whereby the stem may be manipulated.

The spider is adapted to oppose a perforated disk 20 that is fastened to the inner perforated tube 13 of the burner-drum, the mesh of said disk being such as to admit the desired volume of air above the wick.

From the foregoing description it will be seen'that, by'swinging the stem crank 16' in one direction,it will ride upwardly in the guide slot 18 of the apron and thus cause lift of the spider, which, in turn, en-.

gages the disk 20 to cause elevation of the burner-drum from its seat upon-the flanges as it is not desired for the head to neces-' sarily close the bottom of the core.

Fig. 1 illustrates a form of my invention wherein the cup-like core 14* is quite shallow, with relation to the length of the wickshell', and, in this form of my invention, the lower head is eliminated, which elimination in some instances may be desirable. The cup walls are connected to the adjacent inner walls of the wick-shell by arms 15 which arms may be soldered or otherwise secured.

I claim: 1

In an oil stove including an open end wick shell and a drum on the shell, the combination of a cylindrical core disposed in the shell, wings struck outwardly from the peripheral wall of the core forming consequent openings therein and secured to the wick shell whereby to hold the core concentrically spaced in the shell to form any annular air space therein, the ends of the core lying inwardly of the ends of the shell and closures for both ends of the core.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee in the county of Milwaukee and State of IVisconsinI in the presence of two witnesses.

WALTER'C. LINDEMANN.

lVitnesses: N. E. OLIII-IANT, M. E. DOWNEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

